HTTPS x509 authentication

[christopherobin]

An implementation of x509 ssl auth would be pretty nice.
It is currently the only way to make an ELB with authentication:
http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/elb-create-https-ssl-load-balancer.html

See:
http://stackoverflow.com/questions/27423678/mutual-authentication-using-a-usb-token-slot-with-a-x-509-certificate
https://msdn.microsoft.com/en-US/library/system.net.httpwebrequest.clientcertificates(v=vs.80).aspx

Also being able to ignore invalid SSL certificates during development would be pretty nice too:
http://stackoverflow.com/a/526730